In the middle of summer nights, the sky is exceptionally clear.

There are bursts of cicadas chirping and frogs chirping all around, revealing a quiet and peaceful atmosphere.

A huge Kong Ming lantern slowly rises, like a kite, with a rope tied to its base, floating in the air with the wind.

Since the Academy of Sciences arrived in Chengdu Prefecture, it will fly Kong Ming lanterns every day to measure the wind speed and direction, and through the analysis and analysis of collected data, we can find out the local airflow operation law in the shortest possible time.

After observing for several days, Mei Chun found that the local airflow was completely different during the day and night, both at the speed and intensity.

The terrain is very special, located at the junction of the Qinghai-Tibet Plateau and the Sichuan Basin, where the wind speed is slow and the temperature is relatively high, but the further west, as the terrain becomes higher, the wind will travel sharply.

In particular, the heat accumulated in the basin during the day will form a unique thermal divergence system at night, and if you grasp this law, you can work out the flight path of Kong Ming Lantern through measurement.

According to the distance of the local position, the flight time was calculated, the lead machine buckle was set, and a fully automatic bomb-dropping drone appeared.

This night, the moon and stars are sparse, and the breeze is gentle, which is an excellent time to attack.

In the plateau near Yazhou, Uszang's army had been assembled.

In the face of the continuous offensive launched by the Ming army, their life was not easy.

There is not much money and food left from building the railway, and now it is back to the days of eating chaff and vegetables, and in the long run, there is no need for the Ming army to attack, and he will die.

Wang Sangdu has been cheering up the soldiers, saying that the Buddha blesses, and the Ming army will inevitably withdraw.

However, this kind of thing is enough once or twice, and every time he says this, the people under his hands have long been numb.

In order to stabilize the morale of the army, Sang Du can be said to be racking his brains, thinking every day, how to make some miracles, after all, as the spokesperson of the Buddha, if you don't have any magical powers, why should people believe you?

That night, he again went to the front and prepared some "miracles".

Make fireworks from gunpowder that you have worked so hard to get, and set off a few in the dead of night, which can be regarded as the manifestation of the Buddha......

"Look, what's that?"

There was a sudden commotion in the front formation, and some people pointed to the sky, as if they were facing a great enemy.

"It's the Buddha who came into the world!"

I don't know who shouted at the top of their voices, and the others were shocked and fell to their knees.

"The Buddha manifests, the Buddha manifests!"

Sang glanced at the fireworks behind him in confusion, and said secretly in his heart, I haven't released it yet, what's the situation?

The moment he walked out of the camp, he was stunned.

Overhead, a bright flying star hangs in the sky.

What is this thing?

Could it be the new weapon of the Ming army?

Sandu's first instinct was to run quickly, because the Ming army often came up with something novel now, which made people unguardable.

However, I had never heard of anything that could fly into the sky.

Now the only advantage on his side is to rely on the steep terrain of Wusizang, if the Ming army can really fly into the sky, it will be a fart!

Sang Du dispelled the idea of escaping, and after careful observation for a long time, the flying star was just wandering in the sky, but there was no other movement.

Looking at this appearance, it seems that it has nothing to do with the Ming army.

Could it be ...... Did there really be a miracle?

"This is the manifestation of the Buddha!"

It doesn't matter if he's or not, let's say so first!

"You have all seen it, with the protection of the Buddha, what are you afraid of?"

"Pass my order, early tomorrow morning, turn defense into attack, and we will capture the mountain!"

-----------------

The Observatory slowly descended, and the recorder inside took out the data that had just been collected.

Determining the wind direction and speed in Kong Ming lanterns is actually very simple.

All you need is a bamboo tube, or a stick, and wrap a wet towel around it.

After the wind blows, the windward side will dry faster, the leeward side will dry more slowly, and the North Star can be seen at night, so that the wind direction can be determined.

By observing the speed at which the towel dries, you can determine the strength of the wind.

This method was used for more than ten days in a row, and basically understood the law of the air flow above.

The main purpose of this lamp tonight is to verify the accuracy of the previous plan.

And, in order to prevent the grass from startling the snakes, only one light was raised.

Belleen, Mei Chun and others got together and compared the data one by one.

Prior to this, they had already made detailed calculations, based on factors such as wind direction and wind strength, to find the best offensive position, and then reversed the data they had just obtained to verify it.

"Yes, it all matches!"

Belin nodded, then looked at Mei Chun and said, "Do you think there are any more problems?" ”

Mei Chun's face was very nervous, after all, the research on weekdays was only at the theoretical level, at most to the level of exercises, but tonight was a real battle.

War means death, and he knows exactly what the power of the bomb carried by Kong Minglan is.

Every time a bomb falls, it means that someone will die.

On the way from Beijing, he tried to convince himself that whether he had himself or not would not affect the direction of the war, and the role played by Kong Ming Lantern only accelerated the end of the war.

Stop the war with war, stop the war with Go.

Only by completely beating the king of interpretation, subduing him, and beating him to kneel down and beg for mercy, can Wu Sizang truly belong to the territory of the Ming Dynasty.

He tried to calm his mind, checked the two sets of data one by one, and then measured the position on the map.

In the process, his hands still couldn't help but tremble.

Belin patted him on the shoulder and said, "The chances are that if there is a problem with the data, we can act another day." ”

Mei Chun took a deep breath, and then said: "There is no problem with the data, in another half an hour, the wind direction will change to the southeast, and then it will be the best time!" ”

"Good!"

Belin immediately ordered: "Listen to my orders, all ready!" ”

The order was delivered, and everyone went into combat readiness.

It only took a moment for the first batch of 50 Kong Ming lanterns to be assembled.

Mei Chun closed her eyes and quietly felt the night breeze.

"Report, the wind has changed!"

A wisp of wind blew, and Mei Chun opened her eyes and saw that the wind vane on the flagpole had changed direction.

"It's now!"

Belin nodded, and immediately ordered: "Release the Kong Ming Lantern!" ”

Immediately afterward, there was a little fire at the camp.

Fifty teams began to release the first batch of Kong Ming lanterns.

In the night sky, the stars are shining, but the hazy moonlight is a little miserable.

On the dark earth, a Kong Ming lantern slowly rose, drifting with the wind to the western peaks.

Under the lamp, there was also a black thing.

Immediately after that, there was a second lamp, and then a third lamp......

All 50 Kong Ming lanterns were vacated and gradually raised, like stars in the sky.

-----------------

PS: Thank you for the book friend "Shengtian Banzi 400 gold" and "blue magic weapon" for the reward!

Thank you for your commuter passes and recommended tickets!

Thank you all for your support!